Castle Rock — a mountain peak in Mackinac County, Michigan at about 215 m (705 ft) above sea level — is a popular subject for landscape photographers. It sits roughly 5.1 km (3.2 mi) NNW of Saint Ignace.
Castle Rock is a geological limestone stack and tourist attraction located 3 miles (5 km) north of St. Ignace, Michigan on Interstate 75 on the Upper Peninsula of the U.S. state of Michigan.From the Wikipedia article “Castle Rock (Michigan)”, licensed under CC BY-SA 4.0.
Sunrise & sunset directions
At Castle Rock the sunrise point swings a long way through the year: about 54° (NE) at the June solstice and 124° (SE) in late December. Sunset moves from 306° (NW) in June to 236° (WSW) in December, and the midday sun climbs to 68° in summer but only 21° in winter.
| Date | Sunrise | Azimuth | Sunset | Azimuth | Noon sun | Daylight |
|---|---|---|---|---|---|---|
| March equinox (Mar 20) | 7:43 AM | 90° E | 7:51 PM | 271° W | 44° | 12h 09m |
| June solstice (Jun 21) | 5:49 AM | 54° NE | 9:34 PM | 306° NW | 68° | 15h 44m |
| September equinox (Sep 22) | 7:27 AM | 89° E | 7:39 PM | 271° W | 44° | 12h 12m |
| December solstice (Dec 21) | 8:18 AM | 124° SE | 4:57 PM | 236° WSW | 21° | 8h 39m |
Azimuth is measured clockwise from true north (90° = east, 270° = west). Computed for 2026; values change by less than a degree from year to year.
Golden hour & blue hour by month
Summits catch first and last light — alpenglow can turn rock pink or orange minutes before sunrise and after sunset while valleys stay in shadow.
| Month (15th) | Blue hour starts | Sunrise | Golden hour ends | Golden hour starts | Sunset | Blue hour ends | Daylight |
|---|---|---|---|---|---|---|---|
| January | 7:44 AM | 8:17 AM | 9:05 AM | 4:33 PM | 5:21 PM | 5:54 PM | 9h 03m |
| February | 7:12 AM | 7:43 AM | 8:25 AM | 5:23 PM | 6:05 PM | 6:36 PM | 10h 23m |
| March | 7:23 AM | 7:53 AM | 8:32 AM | 7:05 PM | 7:45 PM | 8:15 PM | 11h 52m |
| April | 6:22 AM | 6:54 AM | 7:34 AM | 7:45 PM | 8:26 PM | 8:57 PM | 13h 32m |
| May | 5:33 AM | 6:08 AM | 6:51 AM | 8:21 PM | 9:04 PM | 9:39 PM | 14h 56m |
| June | 5:10 AM | 5:49 AM | 6:35 AM | 8:46 PM | 9:32 PM | 10:10 PM | 15h 43m |
| July | 5:27 AM | 6:04 AM | 6:49 AM | 8:42 PM | 9:27 PM | 10:04 PM | 15h 23m |
| August | 6:07 AM | 6:39 AM | 7:21 AM | 8:08 PM | 8:49 PM | 9:22 PM | 14h 10m |
| September | 6:48 AM | 7:18 AM | 7:57 AM | 7:13 PM | 7:52 PM | 8:22 PM | 12h 34m |
| October | 7:26 AM | 7:56 AM | 8:37 AM | 6:14 PM | 6:55 PM | 7:25 PM | 10h 58m |
| November | 7:08 AM | 7:40 AM | 8:25 AM | 4:23 PM | 5:09 PM | 5:41 PM | 9h 29m |
| December | 7:40 AM | 8:15 AM | 9:05 AM | 4:05 PM | 4:55 PM | 5:30 PM | 8h 41m |
Local time (America/Detroit), including daylight saving time. Golden hour runs from about −4° to +6° solar altitude, so the morning golden hour begins during blue hour, before sunrise.
Milky Way & night sky
From Castle Rock, the Milky Way core is visible in a dark sky from April through August. June gives the longest window (about 2.8 hours on a moonless night), and the core peaks around 15° above the southern horizon. Our light-pollution model puts the sky at about Bortle 1 (excellent dark-sky site), which is excellent for astrophotography.
| Month | Core visible (15th) | Hours | Max altitude | Direction |
|---|---|---|---|---|
| January | Below 10° in darkness | — | -5° | — |
| February | Below 10° in darkness | — | 6° | — |
| March | 5:55 AM – 6:05 AM | 0.2 | 11° | SSE → SSE |
| April | 3:46 AM – 4:56 AM | 1.2 | 14° | SSE → SSE |
| May | 1:48 AM – 3:48 AM | 2.0 | 15° | SSE → S |
| June | 12:14 AM – 3:04 AM | 2.8 | 15° | SSE → SSW |
| July | 11:55 PM – 1:45 AM | 1.8 | 15° | S → SSW |
| August | 10:48 PM – 11:48 PM | 1.0 | 14° | SSW → SSW |
| September | 9:35 PM – 9:45 PM | 0.2 | 11° | SSW → SSW |
| October | Below 10° in darkness | — | 6° | — |
| November | Below 10° in darkness | — | -3° | — |
| December | Below 10° in darkness | — | -20° | — |
Window when the galactic core is at least 10° high during astronomical darkness on the 15th of each month. Pick nights within a few days of the new moon. Plan exact nights with the Milky Way planner.
Estimated sky darkness: 1 Bortle 1 — Excellent dark-sky site. The Milky Way casts faint shadows; zodiacal light and airglow are obvious. Modeled zenith brightness ≈ 21.93 mag/arcsec². Aurora needs roughly Kp 4.0+ to show low on the northern horizon here.
Weather & best season
Long-term NASA satellite data for this area show September as the clearest month (about 61% average cloud cover) and December as the cloudiest (81%). July is the warmest month and February the coldest, which matters for gear, snow access and how long batteries last at night.
Average cloud cover (%)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High °F | 44 | 55 | 75 | 74 | 82 | 85 | 91 | 88 | 86 | 82 | 69 | 58 |
| Low °F | -15 | -18 | -10 | 6 | 27 | 33 | 44 | 46 | 37 | 28 | 13 | -6 |
| Precip. (in) | 1.8 | 1.7 | 1.8 | 3.2 | 3.1 | 3.4 | 2.9 | 3.1 | 3.5 | 4.2 | 2.6 | 2.4 |
Monthly climatology for the surrounding 1° grid cell from NASA POWER (MERRA-2). Mountain sites can be colder and cloudier than the cell average.
Photography tips for this mountain peak
- Alpenglow lasts only a few minutes; set up and focus beforehand.
- Clouds around the summit add drama — a clear blue sky is often the least interesting condition.
- Photograph the peak from a lake, meadow or ridge at sunrise when the face that looks east lights up first.
- Long lenses compress ridgelines; shoot the peak from several miles away to make it look massive.
- Bring a spare battery — cold weather and long exposures drain them fast.
Season: Early summer keeps snow on the peaks with green valleys below; autumn adds aspen or larch color in many ranges.
Suggested gear: Telephoto lens, Lightweight tripod, Warm layers, Microspikes in shoulder seasons. Work out exposures with the depth of field, ND filter and NPF rule calculators.
Nearby photo spots
Other locations within 25 km of Castle Rock, closest first.
Sand Dunes
Lighthouse
State ParkSand Dunes
Lake
State Park
Lighthouse
Natural Arch
LighthouseCampgrounds nearby (Recreation.gov)
- Carp River Campground13.7 km (8.5 mi) · reservable
- Lake Michigan At St. Ignace19.7 km (12.2 mi) · reservable
- Brevoort Lake Campground21 km (13 mi) · reservable
FAQ
When is the best time to photograph Castle Rock?
What time is golden hour at Castle Rock?
Where does the sun rise and set at Castle Rock?
Can you see the Milky Way from Castle Rock?
Do you need a permit to photograph at Castle Rock?
How far is Castle Rock from Saint Ignace?
Sources
Location data: Wikidata, USGS GNIS / GeoNames, Wikipedia. Sun, moon and Milky Way times are computed by LWPhoto Atlas for 2026. Climate: NASA POWER. Sky darkness is a population-based estimate (Walker's law), not a measurement. See data sources & licenses.